"""Utils for validation schemas."""

import datetime

CONFLICT_DATE_FORMAT = '%Y-%m-%d'


def validate_conflict_date(conflict_date):
    """Verify that conflict date is in proper format."""
    try:
        datetime.datetime.strptime(conflict_date, CONFLICT_DATE_FORMAT)
        return True
    except ValueError:
        return False


def make_schema_error_messages(message):
    """Set single error message for all error cases.

    Args:
        message (str): error itself

    Returns:
        dict: error messages for different cases
    """
    return {
        'type': message,
        'null': message,
        'validator_failed': message,
        'invalid': message
    }